Citazione Stile APA (7a Edizione)

Kumar, H. D. (1997). Modern concepts of ecology (8th rev. ed.). Vikas Pub. House ; UBS Publishers' Distributors.

Citazione stile Chigago Style (17a edizione)

Kumar, H. D. Modern Concepts of Ecology. 8th rev. ed. New Delhi: Vikas Pub. House ; UBS Publishers' Distributors, 1997.

Citatione MLA (8a ed.)

Kumar, H. D. Modern Concepts of Ecology. 8th rev. ed. Vikas Pub. House ; UBS Publishers' Distributors, 1997.